Side-dressing attachment for saw-filing machines.



J. T. GOSLINE. S-IDF. BRESSING ATTACHMENT FOR SAW FILING MACHINES-APPLICATION FILED JULY'6. 1916- i g fi fi Patented 001:. 23,1917.

2 SHEETS-SHEET J. T. GOSLINE. SIDE DRESSHEG ATTACHMENT FOR SAW FILINGMACHINES.

APPLICATION FILED JULY G, I916. 192 25131 a.

Patented 00, 23,1917.

2 SHEETS-SHEET 2.

" @msZa'm s i T s'rar TFFEQ$ SIDE-DRESSING ATTACHMENT FOR SAW-FILINGMACHINES.

Specification of Letters Patent.

Patented Oct. 2a, 1917.;

Application filed July 6, 1916. Serial No. 107,838.

To all whom it may concern:

Be it known that 1, JOHN THOS. GosLINn, a citizen of the'United States,residing at Vancouver, in the Province of British Columbia and Dominionof Canada, have invented certain new anduseful Improvements inSide-Dressing Attachments for Saw-Filing Machines; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to an attachment for circle saw filingmachines,;and the primary object of the invention is to provide anattachment, which is applicable for detach able mounting upon the slideof a saw filing machine, which is commerciallyknownas the Coval No. 55,or which may be attached to any similarsaw filing machine. An object ofthe invention is to provide a device of this nature, which will dress:or

filethe sides of the teeth of thesaw, making all of the teeth of uniformwidth. t v

. A further object of this invention is to rovide a side dressingattachment as specied which includes a, pair of pivotally mounted bracecontrolled jaws, and-means foradjusting the position of the outer activeor operative ends of the jaws, for regulating their engagement with thesides of the teeth of a circle saw and to mount files in the outer innerfaces of said jaws for dressing the sides of a circle saws teeth.

With the foregoingand other objects in View this invention consists insuch novel features of construction, combination and arrangement ofparts as will be hereinafter more fully described, illustrated in theaccompanying drawings and claimed.

I In describing the invention in. detail reference will be had'to theaccompanying drawings wherein: like characters, designate like andcorresponding parts throughout the several views, and inwhich Figure 1.is a side elevation of the improvedv side dressing attachment showingthe same applied.

Fig. 2 is a top planviewiof the attachment. 7

I Fig. 3 is a horizontal section having the top .or cover plate removed,

ings, 1 designates a slide which is an exten-.

sion on the originalslides of a saw filing machlne, and 2 designates theside dressing attachment as an entirety. The side dressing attachmentincludes a cross head structure 8. The cross head structure 3 iscomposed of side plates at and abottom plate 5. One of the side plates 4is provided with a hand screw 6, which. is provided for clamp;ingengagement with the slide lfor holding the cross head at adjustedpositions upon the slide. p

A plate 7 ismounted upon top of the cross head structure 2 and it isprovided with upstanding sides 8 which are cut away as shown at 9. Apair of jaws 10 and 11 are pivotally connected as shown at 12 to theupper surface of the plate 7, and they extend the length of thefplateand project a short distancebeyondthe outer end of the same. The jaws 10and 11 are provided with cut out portionsl3 formed in their inner facingsurfaces, in which are placed files 14E. Clamping plates 15 are attachedto the outer end of the jaws 10 and 11 by. suitable set screws 16 andtheyare provided with recesses 17 whiohrecei vc the forward innercorners of the files for clamping the files securely in the recesses 13and holding them connected to the jaws 10 and 11. Thejaws 10 and 11 havetheir inner edges cut away, adjacent their rear pivoted ends as shown at19. A fiat spring 20 is positioned between the facing edges of the jaws10 and 11 and its forward. end engages the shoulders 21' numeral 26 inFig. 1 of the drawings will be properly engaged by the files 14. Anupstanding boss 27 is formed upon the plate 7 and is provided with. ascrew threaded bore 28 into which the lower end of a hand screw 29 isthreaded, The hand screw 29 extends through a cover plate 30, whichcover plate has its forward edges connected to the upstanding sides 8 ofthe plate 7 by set screws v asshown at 3L Thehand screw 29 1s propose, 7

Fingers 33 andifi are connected to the outer edges of the forward endsof the jaws 10 and 11 and extend outwardlytherefrom. The fingers 33 and34 are preferably constructed of resilient metal and have their outerends curved as shown at 35, to provide a rounded surface for ongagingthe sides of a circle saw blade, as clearly shown in Fig. l ofthe-drawings. The fingers exert a tension on'the saw blade andtend tohold the edge of the same firmly as it passes through the files liandyin alinement with-the files.

A second cover plate a0-is mounted over therear pivoted end of the jaws10 and 11 and is attached to the rear portions of the upstanding sides 8byset screws 41. Y

The jaws 10 and 11 are provided with cut out portions 36, which areadapted for receiving'the lug or boss 27 when the saws are in a closedposition.

From the foregoing description taken in connection with the accompanyingdrawings, the advantages of construction and of the method ofoperationof the improved slide dressing attachment for saw filingmachines will be readily apparent to those skilled in the art to whichthis invention appertains, and while in the foregoing-description, theprinciple of the operation of this invention has been described togetherwith various features of construction, itis to be understood vthatcertain minor features of construction, combination and arrangement ofparts may be altered to suit practical conditions provided suchalterations are comprehended within the scope of whatris claimed,

What is claimed is 1.- In a side dressing attachment for saw filing 7machines, the combination with a slide, ofa cross head structure adaptedfor sliding movement upon said slide, means for holding said cross headstructure in ;adjusted positionupon the slide, a pair of pivotallymounted jaws carried by-said cross head structure, saw teethdressingmembers carried by the inner edges of the outer ends of saidjaws, means for normally holding said jaws outward from each other, andmeans for moving the jawstowardeach other and for holding the same in anadjusted position.v

' 2. In a side dressing attachment for saw filing machines, thecombination with a slide, of a cross head structure adapted for slidablemovement upon said slide, means for holding said cross head structure inadjusted-position upon the slide, a pair of pivotally mounted jawscarried by said cross hea d structure, saw teeth dressing memberscarried by the inner edges of the -outer ends of saidsaw, a fiat springpositioned inter mediatesaid jaws and engaging-the j aws-for moving themoutward from i each other, and means for'moving-the jawstowardeach otherand for holding the same in adjusted position-. Y

8'. In a side dressing attachment for saw filingmachines, thecombination; with}; a slide, of a cross head structure adapted forslidable movement upon'said slide, means for holding said cross headstructure -in -ad justed position upon the-slide, a pair of pivotallymounted jaws carried by said crossheadstructure, Lmeans for adjustingthe jaws toward each other, and sideteeth dressing members detachablycarried by the inner edges of said jaws.

l. In a side dressing-attachment for saw filing machines,the--combination with? a slide, of a cross head structure adapted forslidable movement upon saidsli'de, means for holding said cross headstructure in an adjusted positionupon the. -slide,-- apairof f pivotallymounted jaws carried by said cross head structure, means for-adjustingthe jaws toward eachiother, said jaws being provided with cutoutportionson their inner faces adjacent; the forward edges thereof, filespositioned in said 'recesses,-- and clamping plates secured to theforward edges of said aws,- for receivingtheforward corner of-"the filesfor holdingthe a same in position on said jaws.

5. Ina side dressing attachment-forsaw filing machines, the combination,withan ordinary saw filing machine slide',-of across head structureslidably mounted gupon said slide, meansfor holding S&ld. CI'OSS-hQad'structure in various adjusted position-son said slide,-- a pair-ofawsplvotally carried by-said cross head structure, files carried-by theouter free ends of said-jaws-and-adapted for engagement with thesidesof'thesaw teeth, and-hand screws carriedby said cross headstructure andengagingsaid jaws for adjusting the position of thejawsand-hold ing them in adjusted pQsi-tion, resilient fingers attached tothe outer edges of thefree i end of said jaws and extending outwardlytherefrom, Said-fingers havingtheir euter ends curved for providingrounded saw engaging surfaces.

6. In a side dressing attachment for saw filing machines, thecombination, with an ordinary saw filing machine slide, of across headstructure slidably mounted upon said slide, means for holding said crosshead structure in various adjusted positions on said slide, a pair ofjaws pivotally carried by said cross head structure, files carried bythe outer free ends of said jaws and adapted for engagement with thesides of the saw teeth, and hand screws carried by said cross headstructure and engaging said jaws for adjusting the position of the jawsand holding them in adjusted position, resilient fin- Oopies of thispatent may be obtained for five cents each, by addressing theCommissioner of Patents,

gers attached to the outer edges of the free end of said jaws andextending outwardly therefrom, said fingers having their outer endscurved for providing rounded saw engaging surfaces, a cover platecarried by said cross head structure, and means for clamping said coverplate in firm engage ment with the upper edges of said pivoted aws.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN THOMAS GOSLINE.

Witnesses:

R. B. ELLIS, NINA PORTER- Washington, D. G.

